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Celebrating OprahDr. Mehmet Oz! Rachael! See who (and what!) the media mogul has made famous

Dr. MEHMET OZ

The New York Presbyterian cardiac surgeon first appeared on The Oprah Winfrey Show in 2004, making regular appearances as the talk-show host's resident health expert. After discussing health-related issues – from stem-cell research to the proper way to pop a pimple – the Harvard-educated doctor was awarded his own show in 2009: The Dr. Oz Show, backed by Winfrey's Harpo Productions.